This tries to record not only light intensities, but the direction of incoming light as well.

不仅记录光强度，而且也记录入射光的方向。

A spectrum is the result when you divide the incoming light from an object into individual colors, or wavelengths.

光谱当你把从一个物体的入射光分成单独的颜色或波长时产生的结果。

It's the angle of the sun's rays that makes winter cold and summer hot, not our distance from the sun.

阳光入射的角度在真正决定了冬天和夏天的冷热差别，而非距太阳的远近。

The ice crystals reflect incoming light from the sun back into space, which has a cooling effect on the atmosphere.

冰晶将太阳的入射光反射回太空，这对气产生冷却效应。

For a camera it's a diaphragm that governs the amount of incoming light.

对于相机来说，制入射光量的光圈。

So, we’d say that the angle of reflection is equal to the angle of incidence.

所以我们说反射角等于入射角。

Spherical reflectors don't perfectly focus all the incoming rays.

球面反射器不能完美地聚焦所有入射光线。

It absorbs about 99.4% of  all the light that hits it.

能吸收约99.4%的入射光。

In either case, the structures act like a maze for incoming photons.

在任何一种情况下，这些结构都像入射光子的迷宫。

Some of the incoming light, however, will turn into heat.

然而，部分入射光会转化为热量。

Yeah, the angle of incidence is equal to the angle of reflection.

入射角等于反射角。

Unpolarized glasses only use darkened glass to absorb some of the incoming light.

非偏光眼镜只使用深色玻璃 来吸收部分入射光。

For this illusion to work the angle of incidence has to equal the angle of reflection.

为了让这个错觉生效，入射角必须等于反射角。

In the lingo of optics, the angle of incidence doesn't equal the angle of reflection.

在光术语中，入射角不等于反射角。

Remember the angle of incidence always equals the angle of reflection.

记住入射角总等于反射角。

Snell's Law also holds for the next layer, and there the ingoing angle is simply theta 2.

斯涅尔定律也适用于下一层，那里的入射角只 theta 2。

Here’s how it works: The objective lens takes incoming light rays from a distant source.

工作原理如下：物镜摄取来自远处光源的入射光线。

A white incoming light is therefore scattered not in one direction, but in a number of different directions, sorted by their colors.

一束白色入射光被散射至无数不同的方向，而不一个方向，按颜色依次排列。

Look at this graph, you can see that the number of photoelectrons emitted increases as the intensity of the incident light increases.

看这张图，你可以看到，随着入射光强度的增加，发射的光电子数量也在增加。

Keratomileusis corrects what are called refractive errors: imperfections in the way the eye focuses incoming light.

角膜磨镶术可以纠正所谓的屈光不正：眼睛聚焦入射光的方式存在缺陷。